Question

the difference between the compound interest and simple interest on a certain sum for three years at 10% per annum is rupees 93 . find the sum .

Answer 1

Solution
ci - si = 93

{p(1+10/100) pow 3 -p} - {(p × 3 × 10)/100} = 93

{p(1.1) pow 3 - p} - {0.3p} = 93

1.331p - p - 0.3p = 93

0.031p = 93

so p = 3000

hope that helps!!!!

Answer 2

See the attachment......